Hose-cottphlia



N. B. BRALY.

HOSE COUPLING.

APPLICATION FILEnjuLY s, 191B. RENEWED JUNE 9. 1919.

Patented J 111V 2 N. B. BRALY.

Hose coUPLlNG.

nNEwED JUNE 9.1919.

APPLICATION FILED JULY 5, I9 l8.

Patented July 22, 1919.

3 SHEETS-SHEET 2.

N. B. BRALY.

HosE couPLxNG.

APPLICATION FILED JULY 5, |918., RENEWED JUNE 9,1919. 1,3 10,559-,Patented July 22, 1919.

3 SHEETS-SHEET 3.

- UTED .STATES Parav f NORMAN BLYTHE BRALY, 0F BUTTE, MONTANA.

nosE-coUPI-.rna

.Speeication of Letters I Patnt. Patnted July 22, 1919.

Application led Julyl5, 1918, Serial No. 243,337. Renewed June 9, 1919.Serial No. 303,003. l

material, such as canvas, and is utilized for mine ventilation, and`purposes of a generally analogous character.

One'of the primary objects .of the present invention is to provide asimple and relatively inexpensive coupling, in which the parts can beexpeditiously associated and detached', and when in assembled orconnected relation, are effectively held against f accidentaldisengagement.

An embodiment of the invention that has proven very satisfactory andpractical, is illustrated in the accompanying drawings, wherein f.Figure 1 is a view partially in elevation and partially in section,illustrating .two

coupling members when in partly assembled relation,

Fig. 2 is a sectional view showing the two members together, but withthe hose material removed in order to avoid confusion,

Fig. 3 is a sectional view through the outer coupling ring,

- Fig. 4 is a vertical sectional view through Fig. 2, on the)line 4 4thereof,

Fig. 5 is a detail sectional view on the line 5 5 of Fig. 4, f

Fig. 6 is a side elevation of a coupling that while either ring ofadjacent hose sections can be placed with- -in the other, as hereinaftereXplalned, such responding parts in all the lfigures of the drawings.

In the present embodiment, the coupling consists of two rings that areexact duplicates of each other, and therefore a description of one willsuiice for both. The ring consists of a strip of sheet metal 6 bentAlinto circular-form, and having an inturned abutment ange 7 at one edge.The ends `8 of the ring are overlapped and vsaid ends are provided withlongitudinal slots 9, portions of which register. Through theseregistering portions is passed a .connecting device, preferably in theform of a sheet metal plate 10 having inturned tongues 11 passingthrough the slots, the inner ends of the tongues being inset, as shownat 12, forming in ei'ect a staple connection between the ends, the saidtongues being of less width thanthe length of the slots, and thuspermitting a relative sliding movement between the ends of the ringstrip. v

Portions of the hose' sections are shown at 13, and are preferably ofcanvas or some suitable ieXible material. rlhese hose sections-have eachend looped inwardly about one of the rings 6, as shown at 14, the loopsbeing closed by lines of 'stitching l5. The rings are thus c ompletelyinclosed in the fabric hose and the anges are located at the outer edgesof said rings, as will be clear by reference to Fig. 1. if It will beunderstood that these hose sections are provided with rings at bothvends, and that all are duplicates.

In this embodiment of the invention, at-

tention is called to the fact that the length of the slots 9 isdefinitely determined, so that the expansion and contraction of therings is limited, and the range of expansion and conT traction of twocoperating rings is such of two associated ends interlocked relationwill cause the expan- Sion of the outer ring and the contraction of theinner ring, vbut the limits of this rrelative expansion and contractionare such that when two ofthe rings are intertted and the said rings areplaced in parallel relation, as shown in Fig. 2, the outer ring cannotexpand and the inner ring cannot contract sufficiently to permit therings to slip by each other. Thus if Figs. 2, 3 and 4 are compared, itwill be noted that when the rings are together, one within the other,the inner ends of the slots 9 of the inner ring are abutted against theedges of the tongues 11, while the outer ends of the slots A9 of theouter ring are abutted against the edges of the tongues'll passingtherethrough. It will thus be evident that with this construction, thecoupling cannot pull apart. Furthermore the canvas loops incasing therings constitute effective packing means that produce practicallyair-tight joints.

In order, however, that the rings maybe interlocked and detached asdesired, the said rings are capable of slight deformation. Consequentlyall that is necessary to effect the coupling of two hose sections is toplace the rings at substantially right angles to each other, asindicated ,in Fig. 1, and deform either one or both from their normalcircular shape. They may then obviously be passed one through the other,after which the inner ring can be swung to a position parallel to theouter ring and the hose sections drawn outwardly, whereupon they willassume their interlocked relation, as above set forth. From theforegoing, it is thought that the construction, operation and manyadvantages of the herein described invention will be apparent to thoseskilled in the art, with* out further description, and it will beunderstood that various changes in the size, shape, proportion and minordetails of construction may be resorted to without departing from thespirit' or sacrificing any of the advantages of the invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, l' is 1. A coupling of the characterset forth, comprising detachably cooperating coupling rings relativelydeformable to permit one to be disposed at an angle to and passedthrough the other and to assume a substantially parallel relation tosaid other and bear against thesame, one of said rings furthermore beingvariable in diameter, and means for limiting the range of variation indiameter of the said ring to a degree to prevent one of the ringspassing through the other when in said substantially parallel relation.

2. coupling of the character set forth, comprising detachably coperatingcoupling rings'of substantially corresponding diameter, each beingdeformable to permit it to be disposed at an angle to the other and bepassed therethrough, and also to assume a substantially parallelrelation to said other and bear against the same, each of said ringsbeing furthermore variable in diameter, and means for limiting the rangeof variation in diameter of each ring to a degree to prevent either ringto pass through the other when the two are abutted and in substantiallyparallel relation.

3. A coupling of the character set forth,

one of the rings'passing the abutment of the' other when so arranged,one Within the other.

4. A coupling of the character set forth, comprising detachablycooperating coupling rings of substantially corresponding diameter, eachbeing deformed to permit it to be disposed at an angle to the other andbe passed therethrough and to assume a substantially parallel relationone within the other, each of said rings having an abutment againstwhich the other is adapted to bear and each ofsaid rings beingfurthermore variable in diameter, and means for limiting the range ofvariation in diameter of each ring to a degree to prevent either ring topass the abutment of the other when the two rings are interfitted onewithin the other and are in substantially parallel re` lation.

5. A coupling of the character set forth, comprising detachablycoperating expansible and contractile coupling rings capable ofdeformation and each having an inturned.

ytiall parallel relation and to bear against the ange of one, and meansfor restricting the extent of expansion and contraction of the rings toprevent the rings slipping by each other Whenthus tted one within theother and in parallel relation, the range of deformation being sufhcientto permit the rings being placed at an angle to each other and onepassed through the other. s

6. A coupling of the character set forth, comprising detachablycooperating expansible and contractile coupling rings capable ofdeformation and each having their ends slidably overlapped and having aninturned stop or abutment along one edge, either o1' said rings beingadapted to t within the other in substantially parallel relation vandthe relative sliding movements of the ends In testimony whereof, I aixmy signac and the consequent contraction and expanture in the presenceof two Witnesses.

sion of the rings, the said devices and slots restricting suchAexpansion and contraction NORMAN BLYTHE BRALY to limits that preventthe rings slipping by Witnesses:

each other when thus fitted one within the H. A.'H0LP,

other and in substantially parallel relation. .M. L. Essie.

